Oppo A91 smartphone was launched on 20th December 2019. The phone comes with a 6.40-inch touchscreen display with a resolution of 1080×2400 pixels with 90.7 percent screen-to-body ratio. It comes equipped with Corning Gorilla Glass protection.
The smartphone sensors measure physical quantities and transmit them to the application processor. The phones’s accelerometer is a built-in electronic component that measures tilt and motion. A fingerprint sensor is one of the easiest and most secure ways to protect your smartphone. The proximity sensor detects when a user is holding the phone near their face during a call and turns off the display to prevent keypad presses and battery consumption from the display. The A91 has Dual SIM capability, which means that you can insert two different SIM cards and use them both from one phone.
The smartphone is powered by an octa-core processor paired with 8GB of RAM. It comes with 128GB of internal storage. It offers an in-display fingerprint sensor that is claimed to unlock the phone within 0.32 seconds.
The Oppo A91 runs Android 9 and is powered by a 4000mAh non-removable battery. Fast battery charging 30W: 67% in 30 min (VOOC Flash Charge 4.0).
As far as the cameras are concerned, Oppo A91 is speculated to boast of dual primary camera of 48 + 8 + 2 megapixel and 16 megapixel front Camera. It will support high dynamic range(HDR) imaging. The rear camera setup has autofocus. It sports a camera on the front for selfies.
The Oppo A91 runs ColorOS based on Android 9 out of the box, but the A91’s firmware can be upgraded to a newer version of OS and packs 128GB of inbuilt storage.
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Connectivity options on the Oppo A91 include Wi-Fi 802.11 a/b/g/n and GPS with active 4G on both SIM cards. Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, proximity sensor, and fingerprint sensor.
It was launched in Black, Blue, and Red colours. It comes with a price tag of roughly $285.
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Oppo A91 Full Specifications
| Brand | Oppo |
| Model | A91 |
| Release date | 20th December 2019 |
| Form factor | Touchscreen |
| Battery capacity (mAh) | 4000 |
| Removable battery | No |
| Fast charging | VOOC |
| Colours | Black, Blue, Red |
| Screen size (inches) | 6.40 |
| Touchscreen | Yes |
| Resolution | 1080×2400 pixels |
| Protection type | Gorilla Glass |
| Processor | octa-core |
| RAM | 8GB |
| Internal storage | 128GB |
| Rear camera | 48-megapixel + 8-megapixel |
| Rear autofocus | Yes |
| Rear flash | Yes |
| Front camera | Yes |
| Front flash | No |
| Operating system | Android 9 |
| Skin | ColorOS |
| Wi-Fi | Yes |
| Wi-Fi standards supported | 802.11 a/b/g/n |
| GPS | Yes |
| Bluetooth | Yes |
| Active 4G on both SIM cards | Yes |
| Fingerprint sensor | Yes |
| Compass/ Magnetometer | Yes |
| Proximity sensor | Yes |
| Accelerometer | Yes |
| Ambient light sensor | Yes |
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